. Notes on the life history of British flowering plants. Botany; Plant ecology. 17i semi-sagittate stipules appears to depend on the form of the stem and the arrangement of the bud. Where the stem is winged the outer barb of the stipule would be exposed. In such cases the stipule is semi-sagittate. In the Garden Pea [Lathyrus sativus, Fig. 120) the stipules are not only large in bud, and in arrangement resemble those of L. maritimus, but they continue to grow, reaching a length of fully 3 inches, and 1|- in breadth, and act as a pair of leaflets, which they con- siderably exceed in
. Notes on the life history of British flowering plants. Botany; Plant ecology. 17i semi-sagittate stipules appears to depend on the form of the stem and the arrangement of the bud. Where the stem is winged the outer barb of the stipule would be exposed. In such cases the stipule is semi-sagittate. In the Garden Pea [Lathyrus sativus, Fig. 120) the stipules are not only large in bud, and in arrangement resemble those of L. maritimus, but they continue to grow, reaching a length of fully 3 inches, and 1|- in breadth, and act as a pair of leaflets, which they con- siderably exceed in size. L. sativus.—A hardy climbing annual, a native of Southern Europe, cultivated in Britain. The large standard as described by Kirchner^ has at the base. Fig. 120.—Stipules of Lathyrus sativus. A, before the unfolding of the leaf in the natural ; B, with one stipule turned back to show the leaf and shoot inside. two deep folds at right angles to one another, which fit into corresponding depressions of the wing, and thus lock the two closely together. The front edge of the keel is strengthened by a wing-like process, which is bent somewhat into the form of an S, so that the point turns a little to the left. The keel, it will be remembered, consists of two leaves, and the point of the right one is arched outwards, while ^ Quoted by Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lubbock, John, Sir, 1834-1913. London, New York, Macmillan and Co. , Ltd.
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Keywords: ., bookauthorlub, bookcentury1900, bookdecade1900, booksubjectbotany
